(a) f(-8) = sqrt(-8+8) + 2 = sqrt(0) + 2 = 2

(b) f(1) = sqrt(1+8) + 2 = sqrt(9) + 2 = 3+2 = 5

(c) f(x-8) = sqrt(x-8+8) + 2 = sqrt(x) + 2

haha I had done this wrong, I was including the +2 under the sqrt... thank you!

ok

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